Poisson’s ratio is a material property that relates lateral strain to longitudinal strain during deformation.

The CBSE syllabus for 2024-2025 includes Chapter 8 “Mechanical Properties of Solids” from the Class 11 NCERT Physics textbook. This chapter covers essential concepts like stress, strain, elasticity, Young’s modulus, bulk modulus, shear modulus and Poisson’s ratio. It explains how solids deform under different types of forces and the factors that influence their mechanical properties. Multiple-choice questions help assess understanding of these principles such as Hooke’s Law and the stress-strain relationship. Understanding these concepts is crucial for both academic knowledge and real-life applications in various fields like engineering and materials science.